Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_CreateCursor.3 @ 3096:ae4e80dbe330
Date: Tue, 17 Feb 2009 14:00:25 +0100
From: Stefan Klug
Subject: [SDL] Possible bug, paused audio playing garbage
On my WinCE device a paused audio device plays random garbage.
This might also be the issue in the thread "sound cracks with SDL_mixer
and AUDIO_S16LSB"
I don't have that much knowledge of the SDL audio part, but the attached
patch fixes it for me, and collapses two redundant ifs.
I'm not sure if this is the correct way to fix this.
Shouldn't the complete stream conversion part of the RunAudio loop be
dependent on the paused property of the device? (not only the call to
(*fill)(udata, istream, istream_len).
Anyways. Would be great if the patch or a fix could find its way to SVN ;-)
Cheers
Stefan
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 23 Mar 2009 05:21:40 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_CreateCursor" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
|
2283
546f7c1eb755
Merged revision 3472 from SDL 1.2, fixing bug #493
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
3 SDL_CreateCursor \- Creates a new mouse cursor\&. |
| 0 | 4 .SH "SYNOPSIS" |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBSDL_Cursor *\fBSDL_CreateCursor\fP\fR(\fBUint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 Create a cursor using the specified \fBdata\fR and \fBmask\fR (in MSB format)\&. The cursor width must be a multiple of 8 bits\&. | |
| 12 .PP | |
| 13 The cursor is created in black and white according to the following: | |
| 14 .TP 20 | |
| 15 \fBData / Mask\fR | |
| 16 \fBResulting pixel on screen\fR | |
| 17 .TP 20 | |
| 18 0 / 1 | |
| 19 White | |
| 20 .TP 20 | |
| 21 1 / 1 | |
| 22 Black | |
| 23 .TP 20 | |
| 24 0 / 0 | |
| 25 Transparent | |
| 26 .TP 20 | |
| 27 1 / 0 | |
| 28 Inverted color if possible, black if not\&. | |
| 29 .PP | |
| 30 Cursors created with this function must be freed with \fISDL_FreeCursor\fR\&. | |
| 31 .SH "EXAMPLE" | |
| 32 .PP | |
| 33 .nf | |
| 34 \f(CW/* Stolen from the mailing list */ | |
| 35 /* Creates a new mouse cursor from an XPM */ | |
| 36 | |
| 37 | |
| 38 /* XPM */ | |
| 39 static const char *arrow[] = { | |
| 40 /* width height num_colors chars_per_pixel */ | |
| 41 " 32 32 3 1", | |
| 42 /* colors */ | |
| 43 "X c #000000", | |
| 44 "\&. c #ffffff", | |
| 45 " c None", | |
| 46 /* pixels */ | |
| 47 "X ", | |
| 48 "XX ", | |
| 49 "X\&.X ", | |
| 50 "X\&.\&.X ", | |
| 51 "X\&.\&.\&.X ", | |
| 52 "X\&.\&.\&.\&.X ", | |
| 53 "X\&.\&.\&.\&.\&.X ", | |
| 54 "X\&.\&.\&.\&.\&.\&.X ", | |
| 55 "X\&.\&.\&.\&.\&.\&.\&.X ", | |
| 56 "X\&.\&.\&.\&.\&.\&.\&.\&.X ", | |
| 57 "X\&.\&.\&.\&.\&.XXXXX ", | |
| 58 "X\&.\&.X\&.\&.X ", | |
| 59 "X\&.X X\&.\&.X ", | |
| 60 "XX X\&.\&.X ", | |
| 61 "X X\&.\&.X ", | |
| 62 " X\&.\&.X ", | |
| 63 " X\&.\&.X ", | |
| 64 " X\&.\&.X ", | |
| 65 " XX ", | |
| 66 " ", | |
| 67 " ", | |
| 68 " ", | |
| 69 " ", | |
| 70 " ", | |
| 71 " ", | |
| 72 " ", | |
| 73 " ", | |
| 74 " ", | |
| 75 " ", | |
| 76 " ", | |
| 77 " ", | |
| 78 " ", | |
| 79 "0,0" | |
| 80 }; | |
| 81 | |
| 82 static SDL_Cursor *init_system_cursor(const char *image[]) | |
| 83 { | |
| 84 int i, row, col; | |
| 85 Uint8 data[4*32]; | |
| 86 Uint8 mask[4*32]; | |
| 87 int hot_x, hot_y; | |
| 88 | |
| 89 i = -1; | |
| 90 for ( row=0; row<32; ++row ) { | |
| 91 for ( col=0; col<32; ++col ) { | |
| 92 if ( col % 8 ) { | |
| 93 data[i] <<= 1; | |
| 94 mask[i] <<= 1; | |
| 95 } else { | |
| 96 ++i; | |
| 97 data[i] = mask[i] = 0; | |
| 98 } | |
| 99 switch (image[4+row][col]) { | |
| 100 case \&'X\&': | |
| 101 data[i] |= 0x01; | |
| 102 k[i] |= 0x01; | |
| 103 break; | |
| 104 case \&'\&.\&': | |
| 105 mask[i] |= 0x01; | |
| 106 break; | |
| 107 case \&' \&': | |
| 108 break; | |
| 109 } | |
| 110 } | |
| 111 } | |
| 112 sscanf(image[4+row], "%d,%d", &hot_x, &hot_y); | |
| 113 return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y); | |
| 114 }\fR | |
| 115 .fi | |
| 116 .PP | |
| 117 .SH "SEE ALSO" | |
| 118 .PP | |
| 119 \fI\fBSDL_FreeCursor\fP\fR, \fI\fBSDL_SetCursor\fP\fR, \fI\fBSDL_ShowCursor\fP\fR | |
|
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Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
120 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |